Season - Knowledge

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disappears for the last time until the following February. For a few more weeks, "day" is marked by decreasing periods of twilight. Eventually, from mid-November to mid-January, there is no twilight and it is continuously dark. In mid January the first faint wash of twilight briefly touches the horizon (for just minutes per day), and then twilight increases in duration with increasing brightness each day until sunrise at end of February, then on 6 April the sun remains above the horizon until mid October.

2424: 1572: 3334: 6491: 2412:). The equinoxes and solstices move westward relative to the stars while the perihelion and aphelion move eastward. Thus, ten thousand years from now Earth's northern winter will occur at aphelion and northern summer at perihelion. The severity of seasonal change — the average temperature difference between summer and winter in location — will also change over time because the Earth's axial tilt fluctuates between 22.1 and 24.5 degrees. 1712:

temperature permanently rises above +10 °C, autumn as when the temperature permanently falls below +10 °C, and winter as when the temperature permanently falls below 0 °C. In Finland, "permanently" is defined as when the mean daily averaged temperature remains above or below the defined limit for seven consecutive days. (In Sweden the number of days ranges from 5 to 7 depending on the season.) This implies two things:

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months as identified by the Gregorian calendar. According to this definition, for temperate areas in the northern hemisphere, spring begins on 1 March, summer on 1 June, autumn on 1 September, and winter on 1 December. For the southern hemisphere temperate zone, spring begins on 1 September, summer on 1 December, autumn on 1 March, and winter on 1 June. In

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Gregorian calendar); as 2000 was a leap year, the current shift has been progressing since the beginning of the last century, when equinoxes and solstices were relatively late. This also means that in many years of the twentieth century, the dates March 21, June 22, September 23, and December 22 were much more common, so older books teach (and older people may still remember) these dates.

1049: 1744: 2342:. From the March equinox it currently takes 92.75 days until the June solstice, then 93.65 days until the September equinox, 89.85 days until the December solstice and finally 88.99 days until the March equinox. Thus the time from the March equinox to the September equinox is 7.56 days longer than from the September equinox to the March equinox. 1735: 3346: 1265: 3451:

Indigenous people in polar, temperate and tropical climates of northern Eurasia, the Americas, Africa, Oceania, and Australia have traditionally defined the seasons ecologically by observing the activity of the plants, animals and weather around them. Each separate tribal group traditionally observes

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As noted, a variety of dates and even exact times are used in different countries or regions to mark changes of the calendar seasons. These observances are often declared "official" within their respective areas by the local or national media, even when the weather or climate is contradictory. These

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people of South-West Western Australia recognise maar-keyen bonar, or six seasons. Each season's arrival is heralded not by a calendar date, but by environmental factors such as changing winds, flowering plants, temperature and migration patterns and lasts approximately two standard calendar months.

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The calendar equinox (used in the calculation of Easter) is 21 March, the same date as in the Easter tables current at the time of the Council of Nicaea in AD 325. The calendar is therefore framed to prevent the astronomical equinox wandering onto 22 March. From Nicaea to the date of the reform, the

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has moved from December into January). He then defines the seasons of autumn, winter, spring, and summer as starting half-way through these intervals. He gives "the eighth day to the Kalends of January" (December 25) as the date of the winter solstice, though actually it occurred on the 22nd or 23rd

1790:, occurring from December to February. The year's coldest months are December and January, when temperatures average around 10–15 °C (50–59 °F) in the northwest; temperatures rise as one proceeds toward the equator, peaking around 20–25 °C (68–77 °F) in mainland India's southeast. 4170:

Although these distances seem counterintuitive to residents of the Northern Hemisphere who experience summer in July and winter in January — the seasons are not nearly as greatly affected by distance as they are by changes in solar illumination caused by the fact that Earth's polar axis is inclined

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The seasons also correlate to aspects of the human condition, intrinsically linking the lives of the people to the world that surrounds them and also dictating their movements, as with each season, various parts of country would be visited which were particularly abundant or safe from the elements.

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of plants in the tropical rainforests. In Australia, some tribes have up to eight seasons in a year, as do the Sami people in Scandinavia. Many indigenous people who no longer live directly off the land in traditional often nomadic styles, now observe modern methods of seasonal reckoning according

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Most calendar-based partitions use a four-season model to demarcate the warmest and coldest seasons, which are further separated by two intermediate seasons. Calendar-based reckoning defines the seasons in relative rather than absolute terms, so the coldest quarter-year is considered winter even if

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The times of the equinoxes and solstices are not fixed with respect to the modern Gregorian calendar, but fall about six hours later every year, amounting to one full day in four years. They are reset by the occurrence of a leap year. The Gregorian calendar is designed to keep the March equinox no

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wrote that spring, summer, autumn, and winter start on the 23rd day of the sun's passage through Aquarius, Taurus, Leo, and Scorpio, respectively, and that (in the Julian Calendar) these days were February 7, May 9, August 11, and November 10. He points out that the lengths are not equal, being 91

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the dry season (November to April) is called "summer" and the rainy season (May to October) is called "winter", even though it is located in the northern hemisphere. There is no noticeable change in the amount of sunlight at different times of the year. Instead, many regions (such as the northern

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regions see little annual fluctuation of sunlight and temperature due Earth's moderate 23.4-degree tilt being insufficient to appreciably affect the strength of the sun's rays annually. The slight differences between the solstices and the equinoxes cause seasonal shifts along a rainy low-pressure

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In the weeks surrounding 21 June, in the northern polar region, the sun is at its highest elevation, appearing to circle the sky there without going below the horizon. Eventually, it does go below the horizon, for progressively longer periods each day until around the middle of October, when it

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Currently, the most common equinox and solstice dates are March 20, June 21, September 22 or 23, and December 21; the four-year average slowly shifts to earlier times as a century progresses. This shift is a full day in about 128 years (compensated mainly by the century "leap year" rules of the

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are reckoned by temperature, with summer being the hottest quarter of the year and winter the coldest quarter of the year. In 1780 the Societas Meteorologica Palatina (which became defunct in 1795), an early international organization for meteorology, defined seasons as groupings of three whole

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and remains above the horizon until it sets below the horizon again on 6 September at 0335 UTC. By October 13 the sun is above the horizon for only 1 hour 30 minutes, and on October 14 it does not rise above the horizon at all and remains below the horizon until it rises again on 27 February.

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In Sweden and Finland, meteorologists and news outlets use the concept of thermal seasons, which are defined based on mean daily temperatures. The beginning of spring is defined as when the mean daily temperature permanently rises above 0 °C. The beginning of summer is defined as when the

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Floral and animal activity variation near the equator depends more on wet/dry cycles than seasonal temperature variations, with different species flowering (or emerging from cocoons) at specific times before, during, or after the monsoon season. Thus, the tropics are characterized by numerous

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hibernate—winter). So, if a change in daily floral and animal events can be observed, the season is changing. In this sense, ecological seasons are defined in absolute terms, unlike calendar-based methods in which the seasons are relative. If specific conditions associated with a particular

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Nowadays the astronomical timing has winter starting at the winter solstice, spring at the spring equinox, and so on. This is used worldwide, although some countries like Australia, New Zealand, Pakistan and Russia prefer to use meteorological reckoning. The precise timing of the seasons is

4849:. Therefore, the average value over the last 2000 years has been 365.24281 days, 0.00719 days less than an average Julian year. This means the solstice was 2000×0.00719=14.38 days later, that is, on December 23 in the middle of the day.A hundred years earlier it would have been on the 24th. 1811:

season, lasting from June to September. The season is dominated by the humid southwest summer monsoon, which slowly sweeps across the country beginning in late May or early June. Monsoon rains begin to recede from North India at the beginning of October. South India typically receives more

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from the sun. This is because the Northern Hemisphere has more land than the Southern, and land warms more readily than sea. Any noticeable intensification of southern winters and summers due to Earth's elliptical orbit is mitigated by the abundance of water in the Southern Hemisphere.

5094: 3424:(late summer): Generally begins mid to late August. Deciduous leaves begin to change color in higher latitude locations (above 45 north). Young birds reach maturity and join other adult birds preparing for autumn migration. The traditional "harvest season" begins by early September. 3906:

Seasonal weather and climate conditions can become important in the context of military operations. Seasonal reckoning in the military of any country or region tends to be very fluid and based mainly on short to medium term weather conditions that are independent of the calendar.

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tends to vary more dramatically than the average temperature. When the ICZ is north of the Equator, the northern tropics experience their wet season while the southern tropics have their dry season. This pattern reverses when the ICZ migrates to a position south of the Equator.

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In China, a common temperature-based reckoning holds that it is winter for the period when temperatures are below 10°C on average and summer for the period when temperatures are above 22°C on average. This means that areas with relatively extreme climates (such as the

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The solar seasons change at the cross-quarter days, which are about 3–4 weeks earlier than the meteorological seasons and 6–7 weeks earlier than seasons starting at equinoxes and solstices. Thus, the day of greatest insolation is designated "midsummer" as noted in

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The warriors are farmers and the farmers are warriors, so you have to time your war in relation to the harvest and to other agricultural events. Spring and autumn marked the beginning and end of the campaign season, and the rest of the year was closed for

2263:(in non-leap years), 94, 91, and 89 days for spring, summer, autumn, and winter, respectively. The midpoints of these seasons were March 24 or 25, June 25, September 25 or 26, and December 24 or 25, which are near to the equinoxes and solstices of his day. 4171:

23.5 degrees from the perpendicular to the ecliptic (the plane of the solar system through or near which most of the planet's orbits travel) and because the Earth exhibits parallelism (currently toward Polaris, the North Star) as it revolves about the Sun.

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or 830 km from the North Pole), the sun begins to peek above the horizon for minutes per day at the end of February and each day it climbs higher and stays up longer; by 21 March, the sun is up for over 12 hours. On 6 April the sun rises at 0522

2396:(UTC+13), an equinox occurred on September 24, 1999, a date on which the equinox will not fall again until 2103. On the other hand, people living far to the west (America), whose clocks run behind UTC, may experience an equinox as early as March 19. 3350: 5090: 3347: 1221:

of the Earth's surface, so the light received is more indirect and of lower intensity. Between this effect and the shorter daylight hours, the axial tilt of the Earth accounts for most of the seasonal variation in climate in both hemispheres.

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season, lasting from March to May. In western and southern regions, the hottest month is April; for northern regions of India, May is the hottest month. Temperatures average around 32–40 °C (90–104 °F) in most of the

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years 500, 600, 700, 900, 1000, 1100, 1300, 1400, and 1500, which would not have been leap years in the Gregorian calendar, amount to nine extra days, but astronomers directed that ten days be removed. Because of this, the (

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In a space of four yeaers, the solstice occurs latest in the Julian Calendar in the year before a leap year. In 2019, it occurred on the 22nd in the Gregorian Calendar, or December 9 in the Julian, at 4:19 AM, according to

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floral activity is regularly observed during it, despite the traditional association of flowers with spring and summer. The major exception is in the tropics where, as already noted, the winter season is not observed.

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will have one period in the summer called "polar day" when the sun does not set, and one period in the winter called 'polar night' when the sun does not rise. At progressively higher latitudes, the maximum periods of

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Orbital eccentricity can influence temperatures, but on Earth, this effect is small and is more than counteracted by other factors; research shows that the Earth as a whole is actually slightly warmer when

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Compared to axial parallelism and axial tilt, other factors contribute little to seasonal temperature changes. The seasons are not the result of the variation in Earth's distance to the Sun because of its

756:, and plants to be dormant. Various cultures define the number and nature of seasons based on regional variations, and as such there are a number of both modern and historical definitions of the seasons. 3894:, being a glow on the horizon, for increasing hours each day, for more than a month before the sun first appears with its disc above the horizon. From mid-November to mid-January, there is no twilight. 3399:. The actual dates for each season vary by climate region and can shift from one year to the next. Average dates listed here are for mild and cool temperate climate zones in the Northern Hemisphere: 1822:

season, lasting from October to November. In the northwest of India, October and November are usually cloudless. Tamil Nadu receives most of its annual precipitation in the northeast monsoon season.

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The seasonal cycle in the polar and temperate zones of one hemisphere is opposite to that of the other. When it is summer in the Northern Hemisphere, it is winter in the Southern, and vice versa.

1396:, and thus its temperature extremes are buffered by the water. The result is that the South Pole is consistently colder during the southern winter than the North Pole during the northern winter. 1036:(the "North Star") year-round. This is one of the primary reasons for the Earth's seasons, as illustrated by the diagram to the right. Minor variation in the direction of the axis, known as 2713:

Some calendars in south Asia use a six-season partition where the number of seasons between summer and winter can number from one to three. The dates are fixed at even intervals of months.

5266: 1267: 3406:(early or pre-spring): Begins February (mild temperate), to March (cool temperate). Deciduous tree buds begin to swell. Some types of migrating birds fly from winter to summer habitats. 4506: 2443:

Solar timing is based on insolation in which the solstices and equinoxes are seen as the midpoints of the seasons. This was the case with the seasons described by the Roman scholar

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can inhibit campaigning. Rainy-season floods may make rivers temporarily impassable, and winter snow tends to block mountain passes. Taliban offensives are usually confined to the

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Varro says that spring, summer, autumn, and winter start on the 23rd day of the sun's passage through Aquarius, Taurus, Leo, and Scorpio, respectively. Nine years before he wrote,

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opposes the temperature trends of the seasons in the Northern Hemisphere. In general, the effect of orbital eccentricity on Earth's seasons is a 7% variation in sunlight received.

2275:, mentions the two equinoxes and the two solstices and gives the lengths of the intervals (values which were fairly correct in his day but are no longer very correct because the 2303:(periapsis—nearest point to the sun) on anywhere from 2 January to 5 January, the point of March equinox on 19, 20 or 21 March, the point of June solstice on 20 or 21 June, the 1024:

Axial parallelism is a characteristic of the Earth (and most other orbiting bodies in space) in which the direction of the axis remains parallel to itself throughout its orbit.

3436:(winter): Begins December (mild temperate), November (cool temperate). Deciduous trees are bare and fallen leaves begin to decay. Migrating birds settled in winter habitats. 3961:

profits from firm ground - summer can provide dry conditions suitable for marching and transport, frozen snow in winter can also offer a reliable surface for a period, but

5065: 3348: 2307:(apoapsis—farthest point from the sun) on anywhere from 3 July to 6 July, the September equinox on 22 or 23 September, and the December solstice on 21 or 22 December. 1536:

had reformed the calendar, so Varro was able to assign the dates of February 7, May 9, August 11, and November 10 to the start of spring, summer, autumn, and winter.

4556: 783:, June, July, and August are the warmest months in the Northern Hemisphere while December, January, and February are the warmest months in the Southern Hemisphere. 3412:(spring): Begins mid March (mild temperate), to late April (cool temperate). Tree buds burst into leaves. Birds establish territories and begin mating and nesting. 2299:

of Earth's elliptical orbit. The orbital ellipse (with eccentricity exaggerated for effect) goes through each of the six Earth images, which are sequentially the

2392:). People living farther to the east (Asia and Australia), whose local times are in advance, see the astronomical seasons apparently start later; for example, in 4432: 2657:)—translated as "spring", "summer", "autumn", and "winter"—each center on the respective solstice or equinox. Astronomically, the seasons are said to begin on 1228: 4443: 3376: 3430:(autumn): Generally begins mid to late September. Tree leaves in full color then turn brown and fall to the ground. Birds migrate back to wintering areas. 1139:, one part of the planet is more directly exposed to the rays of the Sun than the other, and this exposure alternates as the Earth revolves in its orbit. 4485: 2752:(prevernal or late winter). The six seasons are ascribed to two months each of the twelve months in the Hindu calendar. The rough correspondences are: 6893: 3910:

For navies, the presence of accessible ports and bases can allow naval operations during certain (variable) seasons of the year. The availability of

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Ecologically speaking, a season is a period of the year in which only certain types of floral and animal events happen (e.g.: flowers bloom—spring;

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and some East Asian countries. Summer is defined as the quarter of the year with the greatest insolation and winter as the quarter with the least.

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speaking peoples used or still use a 6-season system. The extra two seasons denoting the freezing and breaking up of the ice on rivers and lakes.

4798: 6748: 4826:. The number of days between successive winter solstices varied from 365.242883 to 365.242740 between the year 1 BC and AD 2000, according to 4047: 1252: 1154:

21. For the other half of the year, the same happens, but in the Southern Hemisphere instead of the Northern, with the maximum around December

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ecological season do not normally occur in a particular region, then that area cannot be said to experience that season on a regular basis.

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it is instead in November, December, and January. It is Earth's axial tilt that causes the Sun to be higher in the sky during the summer

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different seasons determined according to local criteria that can vary from the hibernation of polar bears on the arctic tundras to the

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Six ecological seasons can be distinguished without fixed calendar-based dates like the meteorological and astronomical seasons.

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based on south Asian religious or cultural calendars are recognised and identified for purposes such as agriculture and trade.

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Witte wanted the main base of the Russian Navy to be situated at a location where waters were ice-free the whole year round .

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are mainly a matter of custom and not generally proclaimed by governments north or south of the equator for civil purposes.

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of the respective seasons. Because of seasonal lag due to thermal absorption and release by the oceans, regions with a

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Two images showing the amount of reflected sunlight at southern and northern summer solstices respectively (watts / m).

657: 605: 4640: 2435:(bottom) along with months (lower) and Zodiac houses (upper). The cycle of temperature (shown in pink) is delayed by 6828: 6813: 6798: 5395: 5292: 5200: 5160: 4155: 1453:) do not fall in the middles of summer and winter. The heights of these seasons occur up to 7 weeks later because of 699: 4429: 4581: 587: 17: 6550: 6050: 5705: 4440: 1780: 1716:

the seasons do not begin on fixed dates and must be determined by observation and are known only after the fact,

1346: 5929: 5155:. International Peace Research Institute, Oslo Prio Series. Vol. 10 (reprint ed.). SAGE. p. 98. 2351: 1429: 1218: 1010: 2314:

Exaggerated illustration of Earth's elliptical orbit around the Sun, marking that the orbital extreme points (

997:. The definition of seasons is also cultural. In India, from ancient times to the present day, six seasons or 6853: 6734: 4668: 3446: 1040:, takes place over the course of 26,000 years, and therefore is not noticeable to modern human civilization. 485: 2705:) on about 8 November. This system forms the basis of other such systems in East Asian lunisolar calendars. 6818: 6012: 4353: 3418:(high summer): Begins June in most temperate climates. Trees in full leaf. Birds hatch and raise offspring. 2465: 2362: 6883: 6566: 6303: 4622:

Surface Air Temperature and its Changes Over the Past 150 Years, Figure 7 (Seite 24 von 28 der PDF-Datei)

4381: 3966: 1433: 1085: 6515: 2609:. These periods are collectively known in English as "solar terms" or "solar breaths". The four seasons 6898: 6868: 6773: 5655: 5635: 4740: 2381: 647: 5115: 4407: 6944: 6873: 6667: 6630: 6366: 6215: 6095: 5645: 5558: 4795: 4762: 1109: 896: 652: 1217:. The low angle of the Sun during the winter months means that incoming rays of solar radiation are 6793: 6582: 6574: 6065: 5351: 5274: 5270: 5254: 4773: 4083: 3392: 2415:

Smaller irregularities in the times are caused by perturbations of the Moon and the other planets.

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Astronomical timing as the basis for designating the temperate seasons dates back at least to the

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The annual cycle of insolation (Sun energy, shown in blue) with key points for seasons (middle),

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22), the Northern Hemisphere tips toward the Sun, with the maximum amount occurring on about June

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experiences most direct sunlight during May, June, and July (thus the traditional celebration of

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The traditional calendar in China has 4 seasons based on 24 periods, twelve of which are called

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and therefore a considerable distance from the moderating influence of the southern oceans. The

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determined by the exact times of the sun reaching the tropics of Cancer and Capricorn for the

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considered seasonal midpoints. The length of these seasons is not uniform because of Earth's

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Pre-modern armies, especially in Europe, tended to campaign in the summer months - peasant

3790: 3465: 2721: 2447:(see above). It was the method for reckoning seasons in medieval Europe, especially by the 1596: 1508: 1317: 1202: 998: 985:

Seasons often hold special significance for agrarian societies, whose lives revolve around

932: 624: 222: 4530: 3706:, wet and dry seasons are observed in addition to or in place of temperate season names. 3646: 8: 6858: 6848: 6757: 6659: 6261: 5720: 5680: 3375:

regions tend to experience the beginning of the hibernal season up to a month later than

2544: 2460: 2452: 2409: 2389: 1481: 1477: 1128: 1124: 1069: 1065: 768: 760: 753: 619: 516: 455: 281: 5361: 4844: 4331: 4306: 4063: 3942:. Storm seasons or polar winter-weather conditions can inhibit surface warships at sea. 744:. In temperate and polar regions, the seasons are marked by changes in the intensity of 6939: 6788: 6210: 6188: 6055: 5879: 5850: 5785: 5778: 5306: 4125: 4075: 3703: 2527: 2432: 1743: 1175: 795: 291: 269: 176: 137: 6523: 4715: 2295:

The following diagram shows the relation between the line of solstice and the line of

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the meteorological terms for seasons apply to the temperate zone that occupies all of

1178:, and hence day and night are equally divided between the two hemispheres. Around the 894:. "Seasons" can also be dictated by the timing of important ecological events such as 6918: 6675: 6622: 6609: 6291: 6170: 6070: 5923: 5826: 5730: 5412: 5341: 5196: 5156: 4979: 4893: 4816: 4279: 4246: 4190: 4161: 4151: 4129: 4121: 4079: 4071: 3958: 3699: 2930:

is similar but differs in start and end times. It has the following seasons or ritu:

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Seasonal weather fluctuations (changes) also depend on factors such as proximity to

6949: 6558: 6409: 6397: 6225: 6193: 6025: 5894: 5810: 5800: 5715: 5494: 5465: 5381: 4117: 4067: 4021: 3992:, Greek mythological figure associated with the rebirth of vegetation in the spring 3870: 3850: 3384: 2927: 2875: 2850: 2836: 2811: 2775: 2745: 2741: 2725: 1575:

Four temperate and subpolar seasons: (above) winter, spring, (below) summer, autumn

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that reaches the Earth's surface, variations of which may cause animals to undergo

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In the tropics, where seasonal dates also vary, it is more common to speak of the

670: 6878: 6704: 6638: 6471: 6336: 6313: 6281: 6233: 6220: 6183: 6165: 5795: 5790: 5420: 5368: 5190: 5150: 5146: 4823: 4802: 4791: 4628: 4447: 4436: 4337: 3915: 3911: 3372: 3226: 3096: 3037: 2865: 2825: 2733: 2538: 2470: 2339: 2266: 2255: 1832: 1828: 1734: 1697: 1656: 1604: 1592: 1558: 1407: 1183: 1061: 1053: 800: 592: 367: 70: 5262: 5189:; Allen, Thomas B., eds. (2002). "Games and war in Ancient Greece: Discussion". 4892:. The United States Naval Observatory (USNO). September 21, 2015. Archived from 2700: 2688: 2676: 2664: 6712: 6696: 6601: 6414: 6404: 6203: 6075: 6045: 6030: 5815: 5773: 5768: 5640: 5454: 5310: 3866: 3773: 3453: 3241: 2861: 2717: 1845: 1513: 1113: 915: 902: 675: 582: 416: 4695: 6933: 6823: 6803: 6688: 6494: 6444: 6392: 6326: 6298: 6286: 6276: 6266: 6148: 5992: 5918: 5867: 5820: 5735: 5695: 5690: 5685: 5618: 4414: 3984: 3878: 3846: 3388: 3105: 2911: 2585: 2370: 2366: 1871: 1866: 1571: 1533: 1342: 1179: 1105: 1081: 538: 492: 438: 387: 274: 4165: 2477:

agricultural festivals - the traditional first day of winter is 1 November (

2423: 6903: 6466: 6460: 6126: 6060: 5982: 5913: 5862: 5763: 5710: 5650: 5346: 5229:, ref. ecological seasons pp. 195–196 incl. and pp. 207–209 incl. 5142: 4651: 3953:, nor did it make economic sense in an agricultural society to neglect the 3950: 3946: 3855: 3677: 3333: 2436: 2428: 1454: 1393: 780: 428: 352: 183: 5041: 913:. Some examples of historical importance are the ancient Egyptian seasons— 6913: 6545: 6476: 6454: 6361: 6346: 6141: 6121: 6111: 6040: 5997: 5977: 5906: 5725: 5627: 5316: 5186: 3935: 3923: 3859: 3391:, but generally do not appear until March or April in locations like the 1588: 1584: 1424: 1373: 1316:(the point farthest from the Sun) in July, so the slight contribution of 1210: 1089: 976: 749: 577: 465: 460: 423: 372: 303: 249: 205: 193: 142: 4689: 6808: 6726: 6371: 6271: 6178: 6153: 5956: 5740: 5523: 5515: 5499: 5478: 5473: 5021:"Perth's Noongar seasons explain why autumn feels like a second summer" 4828: 4417:," Astronomical Institute, Utrecht University, downloaded 1 August 2008 3989: 3962: 3939: 3752: 3747: 3734: 3729: 3695: 3668: 3660: 3046: 2886: 2840: 2578: 2498: 2405: 2276: 1719:

the seasons begin on different dates in different parts of the country.

1608: 1450: 1389: 1385: 1381: 1312:(the point in its orbit closest to the Sun) in January, and it reaches 1309: 1278: 1198: 1171: 1167: 1077: 1073: 875: 862: 856: 776: 737: 572: 555: 497: 445: 308: 244: 239: 232: 159: 154: 112: 100: 4965:

Astronomy and Calendars: The Other Chinese Mathematics, 104 BC–AD 1644

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Astronomy and Calendars: The Other Chinese Mathematics, 104 BC–AD 1644

4529:, KNMI (Royal Dutch Meteorology Institute), 2009-03-20, archived from 4048:"Introduction to solar motion geometry on the basis of a simple model" 3930:, has particular interests in maintaining and in preserving access to 2652: 2640: 2628: 2616: 1835:) may be said to have summer all year round or winter all year round. 6434: 6351: 5987: 5899: 5874: 5855: 5745: 5504: 5362:

Satellite photo demonstrating seasons changes in 2004 on NASA website

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These "astronomical" seasons are not of equal length, because of the

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The four seasons have been in use since at least Roman times, as in

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external links, and converting useful links where appropriate into

4465: 3995: 3931: 3891: 3359: 2966: 2962: 2915: 2327: 2315: 2285: 1854: 1757: 1612: 1600: 1465: 1457:. Seasons, though, are not always defined in meteorological terms. 1446: 1377: 1365: 1313: 1187: 1117: 1057: 986: 908: 745: 725: 362: 4696:"Earth's Seasons - Equinoxes, Solstices, Perihelion, and Aphelion" 4546: 6863: 6843: 6546: 6341: 6331: 6253: 6244: 6229: 6116: 5961: 5884: 5593: 5510: 3681: 3664: 3553: 3383:

blooms typically appear as early as February in coastal areas of

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The most historically important of these are the three seasons—

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Earth's Seasons Equinoxes, Solstices, Perihelion, and Aphelion

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21. The two instants when the Sun is directly overhead at the

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located at 82°30′05″N and 62°20′20″W, on the northern tip of

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In the tropical parts of Australia in the northern parts of

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to what is customary in their particular country or region.

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that are calendar-based in the sense of having fixed dates:

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of tropical and subtropical India, there are six seasons or

2365:) Gregorian calendar agrees with the Julian calendar in the 2288:

and the times of the sun's transit over the equator for the

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and the south-west of Western Australia, and the south east

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Illumination of Earth at each change of astronomical season

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always experience opposite seasons. This is because during

936: 550: 450: 433: 411: 337: 5373: 3922:, historically navally constrained when confined to using 3691:"mini-seasons" within the larger seasonal blocks of time. 1048: 4831:; Savoie, D. (1992). "The history of the tropical year". 3883: 3341:

prevernal, vernal, estival, serotinal, autumnal, hibernal

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Animation of Earth as seen daily from the Sun looking at

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and with proximity to bodies of water. For example, the

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The effect of axial tilt is observable as the change in

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regions which are not tied to any fixed calendar dates:

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First light comes in late January because the sky has

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Illumination of Earth by Sun at the southern solstice.

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Illumination of Earth by Sun at the northern solstice.

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increase, and the Southern Hemisphere is experiencing

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times, and the change of seasons is often attended by

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Indigenous seasons (Australian Bureau of Meteorology)

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For approximately half of the year (from around March

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Subdivision of the year based on orbit and axial tilt

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Maris, Mihaela, St. Luchian School, Bacau, Romania,

5140: 4265: 2357:later than 21 March as accurately as is practical. 4861:"When does winter officially start in New Zealand?" 4507:"How are the dates of the four seasons worked out?" 4330:, Ch. 6: Energy and Matter:(h) Earth-Sun Geometry, 4150:. Farmington Hills, MI: Thomson-Gale. p. 487. 767:in June), as the hemisphere faces the Sun. For the 4917: 4278:. Jones & Bartlett Learning, LLC. p. 30. 4182: 4103: 4045: 5257:may not follow Knowledge's policies or guidelines 4232: 3865:For example, at the military and weather station 3366: 2352:Gregorian calendar § Calendar seasonal error 1364:, seasons are marked by changes in the amount of 6931: 5152:The Barents region: cooperation in Arctic Europe 4918:Dershowitz, Nachum; Reingold, Edward M. (2008). 4478: 2258:used by the ancient Romans. As mentioned above, 1116:. (This tilt is also known as "obliquity of the 4833:Journal of the British Astronomical Association 4509:. South African Weather Service. Archived from 4459: 4453: 4347: 4345: 4146:Lerner, K. Lee; Lerner, Brenda Wilmoth (2003). 3901: 3337:The six modern mid-latitude ecological seasons. 3328: 3108:is similar but differs in start and end times. 2497:); the first day of autumn is 1 August (Celtic 2473:, the start of the seasons corresponds to four 2469:, which is set on the summer solstice. On the 1349:/ENSO and other oceanic cycles, and prevailing 1182:, the Northern Hemisphere will be experiencing 4977: 4922:. Cambridge University Press. p. 248–249. 4408:Astronomy Answers AstronomyAnswerBook: Seasons 2669:, "the start of spring") on about 4 February, 2292:, or a traditional date close to these times. 1783:(IMD) designates four climatological seasons: 854:. Many tropical regions have two seasons: the 716:is a division of the year based on changes in 6894:Pacific–North American teleconnection pattern 6742: 6531: 5559: 5389: 4913: 4911: 4582:"Details - Argentina - Seasons & Climate" 4183:Petersen, J.; Sack, D.; Gabler, R.E. (2014). 2698: 2686: 2674: 2662: 2650: 2638: 2626: 2614: 1411:Animation of seasonal differences especially 693: 5185: 4486:"When do the four seasons officially begin?" 4342: 4145: 2338:of the orbit of the Earth, as discovered by 1484:, often consider these four dates to be the 1281:, showing the solstice and changing seasons. 1096:is greater when it falls at a shallow angle. 5352:Tutorial on Earth/Sun Relations and Seasons 4827: 1488:of the seasons as in the diagram, with the 1440: 1332: 6749: 6735: 6538: 6524: 5566: 5552: 5396: 5382: 4952:. University of Hawaii Press. p. 161. 4908: 3918:can make navies much more effective. Thus 1899: 1896: 1893: 1890: 1880: 1875: 1870: 1865: 1068:. Regardless of the time of day (i.e. the 700: 686: 5293:Learn how and when to remove this message 4962: 4932: 4462:"Canadians brace for a cold spring start" 4271: 3244:follows a similar pattern of six seasons 1298: 6756: 4741:Équinoxe de printemps entre 1583 et 2999 4690:Astronomical Applications Department of 4425: 4423: 4351: 4097: 3645: 3440: 3344: 3332: 2451:, and is still ceremonially observed in 2422: 2309: 1570: 1507: 1503: 1406: 1047: 1019: 5227:Seasonal Variations of the Bird Species 5068:. Australian Government. Archived from 4920:Calendrical Calculations, Third Edition 4858: 4716:"Solstices and Equinoxes: 2001 to 2100" 4039: 2708: 1028:The Earth's orbit exhibits approximate 14: 6932: 4616: 4614: 4326:"Fundamentals of physical geography", 4238: 3789:—which were previously defined by the 3354:Seasonal changes of a tree over a year 3028:Hemônto (হেমন্ত) (frost/ late autumn) 2346:Variation due to calendar misalignment 931:—which were previously defined by the 6730: 6519: 5547: 5377: 4420: 4245:. Springer Netherlands. p. 651. 4106:"Geometry and the physics of seasons" 4104:Khavrus, V.; Shelevytsky, I. (2012). 4046:Khavrus, V.; Shelevytsky, I. (2010). 2404:Over thousands of years, the Earth's 1384:is in the middle of the continent of 1004: 6500: 5237: 5066:"Australian weather and the seasons" 4890:Astronomical Applications Department 4683: 4557:"Australian weather and the seasons" 4526:Begin van de lente (Start of Spring) 4488:. National Physical Laboratory. 2007 4379: 2485:); spring starts 1 February (Celtic 1376:in animals. These effects vary with 1123:Regardless of the time of year, the 1100:The seasons result from the Earth's 1015: 6839:Equatorial Indian Ocean oscillation 4611: 3926:(before the 18th century) and even 2408:and orbital eccentricity vary (see 2399: 1052:This diagram shows how the tilt of 1032:, maintaining its direction toward 971:Tropical dry season and wet season/ 794:regions, four seasons based on the 24: 5357:Sunpreview Season Forecast Project 4947: 4608:, Finnish Meteorological Institute 4186:Fundamentals of Physical Geography 1742: 1733: 1432:(ICZ). As a result, the amount of 1112:by an angle of approximately 23.4 25: 6966: 6829:Diurnal air temperature variation 6814:Cataclysmic pole shift hypothesis 6799:Atlantic multidecadal oscillation 5233: 4859:Deguara, Brittney (27 May 2019). 4763:Équinoxe d’automne de 1583 à 2999 4606:The onsets of the thermal seasons 4242:Encyclopedia of World Climatology 2605:and twelve of which are known as 1619:Meteorological temperate seasons 1548: 1498:different speeds along that orbit 6499: 6490: 6489: 5447: 5242: 4304: 4272:Rohli, R.V.; Vega, A.J. (2011). 4221:. John Cassell. 1856. p. 89 4189:. Cengage Learning. p. 18. 3766: 3710:Meteorological Tropical seasons 1651:28 February (29th if leap year) 1341:or other large bodies of water, 1286: 1263: 1251: 1239: 1227: 1166:. Also at that moment, both the 1084:. In addition to the density of 961: 950: 732:, seasons are the result of the 669: 5179: 5134: 5108: 5097:from the original on 2020-08-07 5083: 5058: 5034: 5013: 4992: 4971: 4963:Martzloff, Jean-Claude (2016). 4956: 4950:Chinese Writing and Calligraphy 4941: 4933:Martzloff, Jean-Claude (2016). 4926: 4878: 4852: 4808: 4778: 4767: 4756: 4745: 4734: 4708: 4661: 4648:India Meteorological Department 4633: 4599: 4574: 4517: 4499: 4400: 4373: 4352:Phillips, Tony (July 4, 2003). 4320: 2384:(roughly speaking, the time at 1838: 1781:India Meteorological Department 6678:(Dfc, Dwc, Dsc, Dfd, Dwd, Dsd) 6670:(Dfa, Dwa, Dsa, Dfb, Dwb, Dsb) 4967:. Springer-Verlag. p. 64. 4937:. Springer-Verlag. p. 63. 4298: 4014: 3654: 3629:Kambarang (wildflower season) 3367:Modern mid-latitude ecological 2594: 1603:, the south-eastern corner of 1430:Intertropical Convergence Zone 1080:will be illuminated; see also 1011:Effect of sun angle on climate 13: 1: 6551:Köppen climate classification 4752:Solstice d’été de 1583 à 2999 4007: 3447:Indigenous Australian seasons 2373:, rather than in the fourth. 1773:as published by Jones et al. 1445:In meteorological terms, the 1368:, which in turn often causes 1174:of the Earth are just on the 1043: 6834:El Niño–Southern Oscillation 5327:Aboriginal seasons of Kakadu 3981:, Greek goddesses of seasons 3963:spring thaws or autumn rains 3902:Military campaigning seasons 3862:" are progressively longer. 3818:mid October to mid February 3329:Non-calendar-based reckoning 3003:Shôrôt (শরৎ) (autumn/ fall) 2895:early winter or late autumn 728:hours in a given region. On 7: 6884:Pacific decadal oscillation 6304:Geological history of Earth 5403: 3972: 3967:Afghanistan fighting season 3641: 3308:December 15 to February 14 2380:All the times are given in 1539: 1480:, which predominate in the 1194:as daylight hours shorten. 597:Severe weather terminology 59:Temperate and polar seasons 10: 6971: 6899:Quasi-biennial oscillation 6869:North Atlantic oscillation 6774:Antarctic Circumpolar Wave 5656:Orders of magnitude (time) 5525:bezdorizhzhia / rasputitsa 5307:When do the Seasons Begin? 4122:10.1088/0031-9120/47/6/680 4072:10.1088/0031-9120/45/6/010 4003:, Roman god of the seasons 3618:Djilba (the second rains) 3444: 3297:October 15 to December 14 2953:Grīshmo (গ্রীষ্ম)(summer) 2349: 1766:published by Jones et al. 1760:: the 21st of each month). 1552: 1402: 1372:of dormancy in plants and 1008: 798:are generally recognized: 29: 6874:North Pacific Oscillation 6854:Madden–Julian oscillation 6764: 6687: 6658: 6621: 6594: 6557: 6485: 6427: 6380: 6367:Time translation symmetry 6312: 6252: 6242: 6164: 6091: 6011: 5952: 5836: 5754: 5664: 5626: 5612: 5581: 5487: 5464: 5442: 5411: 5317:Why the Earth has seasons 4980:"A Dictionary of Zoology" 3831:Ruedu fon (rainy season) 3607:Makuru (the first rains) 2978:Bôrsha (বর্ষা) (monsoon) 2948:Mapping to English names 2920:prevernal or late winter 2770:Mapping to English names 2699: 2693:) on about 8 August, and 2687: 2675: 2663: 2651: 2639: 2627: 2615: 2466:A Midsummer Night's Dream 2223: 2194: 2165: 2136: 2107: 2078: 2049: 2020: 1991: 1962: 1933: 1928: 1925: 1922: 1919: 1916: 1913: 1910: 1907: 1904: 1887: 1862: 1725: 1468:alone, the solstices and 1449:(the maximum and minimum 1423:and (to a lesser degree) 1308:. In fact, Earth reaches 1219:spread over a larger area 6819:Dansgaard–Oeschger event 6794:Atlantic Equatorial mode 5573: 5116:"U.S. Naval Observatory" 5023:. Abc.net.au. 2018-03-16 4460:CBC News Canada (2013). 3840: 3826:mid February to mid May 3815:Ruedu nao (cold season) 3393:Midwestern United States 3319:February 15 to April 14 3286:August 15 to October 14 2489:); summer begins 1 May ( 2418: 1441:Mid-latitude thermal lag 1333:Maritime and hemispheric 6889:Pacific Meridional Mode 6322:Absolute space and time 5973:Astronomical chronology 5347:Melbourne's six seasons 4978:Michael Allaby (1999). 4026:www.merriam-webster.com 3949:tended to melt away at 3845:Any point north of the 3834:mid May to mid October 3823:Ruedu ron (hot season) 3585:Bunuru (second summer) 3339:From bottom, clockwise: 2493:, the Celtic origin of 2481:, the Celtic origin of 1727:Surface air temperature 32:Season (disambiguation) 6372:Time reversal symmetry 5676:Italian six-hour clock 5091:"Royal Thai Institute" 4148:World of earth science 4022:"Definition of SEASON" 3791:former annual flooding 3651: 3591:Season of adolescence 3355: 3342: 3267:Chithirai and Vaikasi 3078:Bôsônto বসন্ত(spring) 2440: 2331: 1747: 1738: 1580:Meteorological seasons 1576: 1517: 1464:reckoning by hours of 1416: 1415:cover through the year 1299:Elliptical Earth orbit 1146:20 to around September 1097: 1025: 933:former annual flooding 775:, which increases the 658:Tropical cyclone terms 6784:Arctic dipole anomaly 6779:Antarctic oscillation 6137:Time and fate deities 6082:The Unreality of Time 6021:A series and B series 5141:Stokke, Olav Schram; 5046:Noongarculture.org.au 4794:(paragraphs 220-2 in 4382:"Earth at Perihelion" 4328:PhysicalGeography.net 4239:Oliver, J.E. (2008). 3649: 3624:Season of conception 3574:Birak (first summer) 3441:Indigenous ecological 3395:and parts of eastern 3353: 3336: 3300:Aipasi and Karthikai 3275:June 15 to August 14 3053:Shīto (শীত) (winter) 2936:Bengali season (ঋতু) 2426: 2313: 1762:Calculation based on 1746: 1737: 1574: 1553:Further information: 1511: 1504:Four-season reckoning 1410: 1076:will be dark and the 1056:aligns with incoming 1051: 1023: 265:Extratropical cyclone 189:Air-mass thunderstorm 6758:Climate oscillations 6641:(Cfb, Cwb, Cfc, Cwc) 6567:Tropical rainforest 6388:Chronological dating 6357:Theory of relativity 5701:Daylight saving time 5263:improve this article 5042:"Kaartdijin Noongar" 4620:P. D. Jones et al.: 4218:The Popular Educator 3667:) season versus the 3632:October to November 3621:August to September 3602:Season of adulthood 3580:Season of the young 3577:December to January 3480:English translation 3377:continental climates 3305:PinPani (prevernal) 3289:Avani and Purattasi 3264:April 15 to June 14 3261:MuthuVenil (summer) 2748:(early winter), and 2709:Six-season reckoning 1318:orbital eccentricity 1205:of the Sun at solar 1129:southern hemispheres 1108:with respect to its 879:. Some have a third 724:, and the number of 625:Weather modification 223:Anticyclonic tornado 30:For other uses, see 6859:Milankovitch cycles 6849:Indian Ocean Dipole 5681:Thai six-hour clock 5337:Mt Stirling Seasons 5275:footnote references 4948:Li, Wendan (2009). 4896:on October 13, 2007 4845:1992JBAA..102...40M 4307:"Tilt of the Earth" 4064:2010PhyEd..45..641K 3957:season. Any modern 3718:Southern Hemisphere 3715:Northern Hemisphere 3711: 3650:Wet and dry seasons 3566:Approximate months 3477:Approximate months 3464:and possibly other 3460:The North American 2506: 2461:William Shakespeare 2410:Milankovitch cycles 2390:British Summer Time 1859: 1627:Southern hemisphere 1624:Northern hemisphere 1620: 1482:Northern Hemisphere 1478:continental climate 1066:Northern Hemisphere 769:Southern Hemisphere 761:Northern Hemisphere 620:Weather forecasting 456:Rain and snow mixed 282:Subtropical cyclone 6804:Earth's axial tilt 6789:Arctic oscillation 6668:Humid continental 6631:Humid subtropical 6211:Rosy retrospection 6189:Mental chronometry 6013:Philosophy of time 5367:2015-03-18 at the 5000:"Noongar Glossary" 4822:2007-10-13 at the 4801:2022-05-04 at the 4796:this Latin edition 4790:2022-06-16 at the 4722:. 20 February 2018 4627:2010-07-16 at the 4513:on 3 January 2015. 4446:2022-12-28 at the 4435:2022-12-28 at the 4336:2006-07-06 at the 3709: 3704:Northern Territory 3671:. For example, in 3652: 3588:February to March 3569:Cultural parallel 3356: 3343: 3322:Maasi and Panguni 3316:IlaVenil (spring) 3311:Margazhi and Thai 3216:December–February 2681:) on about 6 May, 2504: 2441: 2433:cross-quarter days 2332: 1843: 1769:The picture shows 1748: 1739: 1618: 1577: 1518: 1490:cross-quarter days 1417: 1098: 1072:on its axis), the 1026: 1005:Causes and effects 796:Gregorian calendar 676:Weather portal 292:Atlantic hurricane 270:European windstorm 177:Volcanic lightning 138:Cumulonimbus cloud 6927: 6926: 6919:True polar wander 6914:Solar variability 6724: 6723: 6583:Tropical savanna 6575:Tropical monsoon 6513: 6512: 6423: 6422: 6398:Circadian rhythms 6216:Tense–aspect–mood 6071:Temporal finitism 5948: 5947: 5924:Grandfather clock 5541: 5540: 5413:Temperate seasons 5303: 5302: 5295: 5002:. Courses.edx.org 4886:"Earth's Seasons" 4354:"The Distant Sun" 4285:978-1-4496-5591-4 4252:978-1-4020-3264-6 4196:978-1-285-96971-8 4110:Physics Education 4052:Physics Education 3838: 3837: 3764: 3763: 3700:Western Australia 3687:and wind cycles. 3639: 3638: 3613:Fertility season 3550: 3549: 3351: 3326: 3325: 3294:MunPani (winter) 3253:Gregorian months 3238: 3237: 3198:October–December 3102: 3101: 2924: 2923: 2592: 2591: 2336:elliptical nature 2252: 2251: 1848:date and time of 1831:and parts of the 1777: 1776: 1709: 1708: 1345:in those oceans, 1272: 1030:axial parallelism 1016:Axial parallelism 734:axial parallelism 710: 709: 16:(Redirected from 6962: 6945:Climate patterns 6751: 6744: 6737: 6728: 6727: 6549:types under the 6540: 6533: 6526: 6517: 6516: 6503: 6502: 6493: 6492: 6410:Glottochronology 6250: 6249: 6166:Human experience 6026:B-theory of time 5624: 5623: 5568: 5561: 5554: 5545: 5544: 5516:Mud / breakup / 5466:Tropical seasons 5457: 5452: 5451: 5398: 5391: 5384: 5375: 5374: 5342:The Lost Seasons 5298: 5291: 5287: 5284: 5278: 5246: 5245: 5238: 5218: 5217: 5211: 5209: 5183: 5177: 5176: 5171: 5169: 5147:Nansen, Fridtjof 5138: 5132: 5131: 5129: 5127: 5118:. Archived from 5112: 5106: 5105: 5103: 5102: 5087: 5081: 5080: 5078: 5077: 5062: 5056: 5055: 5053: 5052: 5038: 5032: 5031: 5029: 5028: 5017: 5011: 5010: 5008: 5007: 4996: 4990: 4989: 4987: 4986: 4975: 4969: 4968: 4960: 4954: 4953: 4945: 4939: 4938: 4930: 4924: 4923: 4915: 4906: 4905: 4903: 4901: 4882: 4876: 4875: 4873: 4871: 4856: 4850: 4848: 4812: 4806: 4782: 4776: 4774:Solstice d’hiver 4771: 4765: 4760: 4754: 4749: 4743: 4738: 4732: 4731: 4729: 4727: 4712: 4706: 4705: 4703: 4702: 4687: 4681: 4680: 4678: 4676: 4665: 4659: 4658: 4656: 4650:. Archived from 4645: 4637: 4631: 4618: 4609: 4603: 4597: 4596: 4594: 4592: 4586:www.wildland.com 4578: 4572: 4571: 4569: 4568: 4559:. Archived from 4553: 4544: 4543: 4542: 4541: 4535: 4521: 4515: 4514: 4503: 4497: 4496: 4494: 4493: 4482: 4476: 4475: 4473: 4472: 4457: 4451: 4427: 4418: 4404: 4398: 4397: 4395: 4393: 4380:Phillips, Tony. 4377: 4371: 4370: 4368: 4366: 4349: 4340: 4324: 4318: 4317: 4315: 4313: 4302: 4296: 4295: 4293: 4292: 4269: 4263: 4262: 4260: 4259: 4236: 4230: 4229: 4227: 4226: 4213: 4207: 4206: 4204: 4203: 4180: 4174: 4173: 4143: 4134: 4133: 4101: 4095: 4094: 4092: 4091: 4082:. Archived from 4043: 4037: 4036: 4034: 4032: 4018: 3959:war of manoeuvre 3916:warm-water ports 3871:Ellesmere Island 3851:Antarctic Circle 3849:or south of the 3804: 3803: 3712: 3708: 3635:Season of birth 3596:Djeran (autumn) 3560: 3559: 3471: 3470: 3385:British Columbia 3352: 3247: 3246: 3140:Båiśākhå–Jyeṣṭhå 3111: 3110: 2933: 2932: 2928:Bengali Calendar 2755: 2754: 2704: 2703: 2692: 2691: 2680: 2679: 2668: 2667: 2656: 2655: 2644: 2643: 2632: 2631: 2620: 2619: 2545:St. Brigid's Day 2507: 2503: 2400:Change over time 1860: 1842: 1756:was calculated ( 1723: 1722: 1621: 1617: 1526:Rerum rusticarum 1512:Four Seasons by 1494:elliptical orbit 1428:belt called the 1306:elliptical orbit 1290: 1274: 1273: 1255: 1243: 1231: 1186:as the hours of 1157: 1153: 1149: 1145: 1102:axis of rotation 1092:of light in the 1070:Earth's rotation 1038:axial precession 965: 954: 897:hurricane season 702: 695: 688: 674: 673: 287:Tropical cyclone 199:Dry thunderstorm 94:Tropical seasons 37: 36: 21: 18:Temperate season 6970: 6969: 6965: 6964: 6963: 6961: 6960: 6959: 6930: 6929: 6928: 6923: 6879:Orbital forcing 6766: 6760: 6755: 6725: 6720: 6683: 6654: 6649:(Csa, Csb, Csc) 6617: 6590: 6553: 6544: 6514: 6509: 6481: 6472:Time immemorial 6419: 6376: 6337:Coordinate time 6308: 6262:Geological time 6238: 6221:Time management 6184:Generation time 6168: 6160: 6105: 6087: 6007: 5966: 5944: 5832: 5750: 5667: 5660: 5616: 5608: 5577: 5572: 5542: 5537: 5483: 5460: 5453: 5446: 5440: 5407: 5402: 5369:Wayback Machine 5299: 5288: 5282: 5279: 5260: 5251:This article's 5247: 5243: 5236: 5222: 5221: 5207: 5205: 5203: 5187:Cornell, Tim J. 5184: 5180: 5167: 5165: 5163: 5149:, eds. (1994). 5139: 5135: 5125: 5123: 5114: 5113: 5109: 5100: 5098: 5089: 5088: 5084: 5075: 5073: 5064: 5063: 5059: 5050: 5048: 5040: 5039: 5035: 5026: 5024: 5019: 5018: 5014: 5005: 5003: 4998: 4997: 4993: 4984: 4982: 4976: 4972: 4961: 4957: 4946: 4942: 4931: 4927: 4916: 4909: 4899: 4897: 4884: 4883: 4879: 4869: 4867: 4857: 4853: 4824:Wayback Machine 4813: 4809: 4803:Wayback Machine 4792:Wayback Machine 4783: 4779: 4772: 4768: 4761: 4757: 4750: 4746: 4739: 4735: 4725: 4723: 4720:AstroPixels.com 4714: 4713: 4709: 4700: 4698: 4688: 4684: 4674: 4672: 4667: 4666: 4662: 4654: 4643: 4639: 4638: 4634: 4629:Wayback Machine 4619: 4612: 4604: 4600: 4590: 4588: 4580: 4579: 4575: 4566: 4564: 4555: 4554: 4547: 4539: 4537: 4533: 4523: 4522: 4518: 4505: 4504: 4500: 4491: 4489: 4484: 4483: 4479: 4470: 4468: 4458: 4454: 4448:Wayback Machine 4437:Wayback Machine 4428: 4421: 4405: 4401: 4391: 4389: 4378: 4374: 4364: 4362: 4350: 4343: 4338:Wayback Machine 4325: 4321: 4311: 4309: 4305:Cain, Fraiser. 4303: 4299: 4290: 4288: 4286: 4270: 4266: 4257: 4255: 4253: 4237: 4233: 4224: 4222: 4215: 4214: 4210: 4201: 4199: 4197: 4181: 4177: 4158: 4144: 4137: 4102: 4098: 4089: 4087: 4044: 4040: 4030: 4028: 4020: 4019: 4015: 4010: 3975: 3904: 3843: 3769: 3680:) have varying 3657: 3644: 3563:Noongar season 3454:growing seasons 3449: 3443: 3369: 3345: 3340: 3338: 3331: 3283:Kulir (autumn) 3272:Kaar (monsoon) 3234:February–April 3222: 3204: 3195:Kārtik–Mārgåśir 3185: 3179:August–October 3167: 3149: 3131: 3115: 2945:Bengali months 2711: 2597: 2528:All Saints' Day 2471:Celtic calendar 2421: 2402: 2354: 2348: 2340:Johannes Kepler 2272:Natural History 2267:Pliny the Elder 2256:Julian Calendar 1858: 1849: 1841: 1833:Tibetan plateau 1829:Paracel Islands 1761: 1611:areas south of 1605:South Australia 1593:New South Wales 1569: 1559:Spring (season) 1551: 1542: 1506: 1443: 1405: 1335: 1301: 1294: 1291: 1282: 1275: 1264: 1259: 1256: 1247: 1244: 1235: 1232: 1155: 1151: 1147: 1143: 1062:winter solstice 1046: 1018: 1013: 1007: 983: 982: 981: 980: 968: 967: 966: 957: 956: 955: 706: 668: 663: 662: 638: 630: 629: 488: 478: 477: 390: 380: 379: 368:Ground blizzard 128: 118: 117: 96: 86: 85: 61: 35: 28: 23: 22: 15: 12: 11: 5: 6968: 6958: 6957: 6952: 6947: 6942: 6925: 6924: 6922: 6921: 6916: 6911: 6906: 6901: 6896: 6891: 6886: 6881: 6876: 6871: 6866: 6861: 6856: 6851: 6846: 6844:Glacial cycles 6841: 6836: 6831: 6826: 6821: 6816: 6811: 6806: 6801: 6796: 6791: 6786: 6781: 6776: 6770: 6768: 6762: 6761: 6754: 6753: 6746: 6739: 6731: 6722: 6721: 6719: 6718: 6710: 6702: 6693: 6691: 6685: 6684: 6682: 6681: 6673: 6664: 6662: 6656: 6655: 6653: 6652: 6647:Mediterranean 6644: 6636: 6627: 6625: 6619: 6618: 6616: 6615: 6607: 6598: 6596: 6592: 6591: 6589: 6588: 6580: 6572: 6563: 6561: 6555: 6554: 6543: 6542: 6535: 6528: 6520: 6511: 6510: 6508: 6507: 6497: 6486: 6483: 6482: 6480: 6479: 6474: 6469: 6464: 6457: 6452: 6447: 6442: 6437: 6431: 6429: 6425: 6424: 6421: 6420: 6418: 6417: 6415:Time geography 6412: 6407: 6405:Clock reaction 6402: 6401: 6400: 6390: 6384: 6382: 6378: 6377: 6375: 6374: 6369: 6364: 6359: 6354: 6349: 6344: 6339: 6334: 6329: 6324: 6318: 6316: 6310: 6309: 6307: 6306: 6301: 6296: 6295: 6294: 6289: 6284: 6279: 6274: 6269: 6258: 6256: 6247: 6240: 6239: 6237: 6236: 6223: 6218: 6213: 6208: 6207: 6206: 6204:time signature 6201: 6191: 6186: 6181: 6175: 6173: 6162: 6161: 6159: 6158: 6157: 6156: 6146: 6145: 6144: 6134: 6129: 6124: 6119: 6114: 6108: 6106: 6104: 6103: 6098: 6092: 6089: 6088: 6086: 6085: 6078: 6076:Temporal parts 6073: 6068: 6063: 6058: 6053: 6048: 6046:Eternal return 6043: 6038: 6033: 6031:Chronocentrism 6028: 6023: 6017: 6015: 6009: 6008: 6006: 6005: 6000: 5995: 5990: 5985: 5980: 5975: 5969: 5967: 5965: 5964: 5959: 5953: 5950: 5949: 5946: 5945: 5943: 5942: 5941: 5940: 5926: 5921: 5916: 5911: 5910: 5909: 5904: 5903: 5902: 5897: 5887: 5882: 5877: 5872: 5871: 5870: 5860: 5859: 5858: 5842: 5840: 5834: 5833: 5831: 5830: 5823: 5818: 5816:Hindu Panchang 5813: 5808: 5803: 5798: 5793: 5788: 5783: 5782: 5781: 5776: 5771: 5760: 5758: 5752: 5751: 5749: 5748: 5743: 5738: 5733: 5728: 5723: 5718: 5713: 5708: 5703: 5698: 5693: 5688: 5683: 5678: 5672: 5670: 5662: 5661: 5659: 5658: 5653: 5648: 5643: 5638: 5632: 5630: 5621: 5610: 5609: 5607: 5606: 5601: 5596: 5591: 5585: 5583: 5579: 5578: 5571: 5570: 5563: 5556: 5548: 5539: 5538: 5536: 5535: 5530: 5529: 5528: 5513: 5511:Monsoon season 5508: 5502: 5497: 5495:Cyclone season 5491: 5489: 5485: 5484: 5482: 5481: 5476: 5470: 5468: 5462: 5461: 5459: 5458: 5455:Weather portal 5443: 5441: 5439: 5438: 5433: 5428: 5423: 5417: 5415: 5409: 5408: 5401: 5400: 5393: 5386: 5378: 5372: 5371: 5359: 5354: 5349: 5344: 5339: 5334: 5329: 5324: 5314: 5311:Bad Astronomer 5301: 5300: 5255:external links 5250: 5248: 5241: 5235: 5234:External links 5232: 5231: 5230: 5220: 5219: 5201: 5178: 5161: 5133: 5122:on 30 May 2010 5107: 5082: 5057: 5033: 5012: 4991: 4970: 4955: 4940: 4925: 4907: 4877: 4851: 4807: 4777: 4766: 4755: 4744: 4733: 4707: 4682: 4660: 4657:on 2019-12-31. 4632: 4610: 4598: 4573: 4545: 4516: 4498: 4477: 4452: 4441:Latin original 4419: 4413:2004-06-23 at 4399: 4372: 4341: 4319: 4297: 4284: 4264: 4251: 4231: 4208: 4195: 4175: 4156: 4135: 4116:(6): 680–692. 4096: 4058:(6): 641–653. 4038: 4012: 4011: 4009: 4006: 4005: 4004: 3998: 3993: 3987: 3982: 3974: 3971: 3903: 3900: 3879:nautical miles 3842: 3839: 3836: 3835: 3832: 3828: 3827: 3824: 3820: 3819: 3816: 3812: 3811: 3808: 3768: 3765: 3762: 3761: 3758: 3755: 3750: 3744: 3743: 3740: 3737: 3732: 3726: 3725: 3722: 3719: 3716: 3656: 3653: 3643: 3640: 3637: 3636: 3633: 3630: 3626: 3625: 3622: 3619: 3615: 3614: 3611: 3608: 3604: 3603: 3600: 3597: 3593: 3592: 3589: 3586: 3582: 3581: 3578: 3575: 3571: 3570: 3567: 3564: 3548: 3547: 3544: 3541: 3537: 3536: 3533: 3530: 3526: 3525: 3522: 3519: 3515: 3514: 3511: 3508: 3504: 3503: 3500: 3497: 3493: 3492: 3489: 3486: 3482: 3481: 3478: 3475: 3442: 3439: 3438: 3437: 3431: 3425: 3419: 3413: 3407: 3368: 3365: 3330: 3327: 3324: 3323: 3320: 3317: 3313: 3312: 3309: 3306: 3302: 3301: 3298: 3295: 3291: 3290: 3287: 3284: 3280: 3279: 3278:Aani and Aadi 3276: 3273: 3269: 3268: 3265: 3262: 3258: 3257: 3254: 3251: 3242:Tamil calendar 3236: 3235: 3232: 3231:Fālgun–Chåitrå 3229: 3224: 3218: 3217: 3214: 3211: 3206: 3200: 3199: 3196: 3193: 3187: 3181: 3180: 3177: 3174: 3169: 3163: 3162: 3159: 3156: 3151: 3145: 3144: 3141: 3138: 3133: 3127: 3126: 3123: 3120: 3117: 3100: 3099: 3094: 3085: 3082: 3079: 3075: 3074: 3069: 3060: 3057: 3054: 3050: 3049: 3044: 3035: 3032: 3029: 3025: 3024: 3019: 3010: 3007: 3004: 3000: 2999: 2994: 2985: 2982: 2979: 2975: 2974: 2969: 2960: 2957: 2954: 2950: 2949: 2946: 2943: 2940: 2937: 2922: 2921: 2918: 2909: 2906: 2903: 2897: 2896: 2893: 2884: 2881: 2878: 2872: 2871: 2868: 2859: 2856: 2855:Mid-September 2853: 2847: 2846: 2843: 2834: 2833:Mid-September 2831: 2828: 2822: 2821: 2818: 2809: 2806: 2803: 2797: 2796: 2793: 2784: 2781: 2778: 2772: 2771: 2768: 2765: 2762: 2759: 2718:Hindu calendar 2710: 2707: 2596: 2593: 2590: 2589: 2582: 2575: 2569: 2568: 2565: 2558: 2552: 2551: 2548: 2541: 2535: 2534: 2531: 2524: 2518: 2517: 2514: 2511: 2505:Irish seasons 2420: 2417: 2401: 2398: 2347: 2344: 2280:at that time. 2250: 2249: 2246: 2243: 2240: 2237: 2234: 2231: 2228: 2225: 2221: 2220: 2217: 2214: 2211: 2208: 2205: 2202: 2199: 2196: 2192: 2191: 2188: 2185: 2182: 2179: 2176: 2173: 2170: 2167: 2163: 2162: 2159: 2156: 2153: 2150: 2147: 2144: 2141: 2138: 2134: 2133: 2130: 2127: 2124: 2121: 2118: 2115: 2112: 2109: 2105: 2104: 2101: 2098: 2095: 2092: 2089: 2086: 2083: 2080: 2076: 2075: 2072: 2069: 2066: 2063: 2060: 2057: 2054: 2051: 2047: 2046: 2043: 2040: 2037: 2034: 2031: 2028: 2025: 2022: 2018: 2017: 2014: 2011: 2008: 2005: 2002: 1999: 1996: 1993: 1989: 1988: 1985: 1982: 1979: 1976: 1973: 1970: 1967: 1964: 1960: 1959: 1956: 1953: 1950: 1947: 1944: 1941: 1938: 1935: 1931: 1930: 1927: 1924: 1921: 1918: 1915: 1912: 1909: 1906: 1902: 1901: 1898: 1895: 1892: 1889: 1885: 1884: 1879: 1874: 1869: 1864: 1844: 1840: 1837: 1824: 1823: 1813: 1802: 1791: 1775: 1774: 1767: 1750: 1749: 1740: 1730: 1729: 1721: 1720: 1717: 1707: 1706: 1703: 1700: 1695: 1689: 1688: 1685: 1682: 1677: 1671: 1670: 1667: 1664: 1659: 1653: 1652: 1649: 1646: 1641: 1635: 1634: 1631: 1628: 1625: 1550: 1549:Meteorological 1547: 1541: 1538: 1514:Alphonse Mucha 1505: 1502: 1442: 1439: 1404: 1401: 1334: 1331: 1300: 1297: 1296: 1295: 1292: 1285: 1283: 1276: 1262: 1260: 1257: 1250: 1248: 1245: 1238: 1236: 1233: 1226: 1045: 1042: 1017: 1014: 1009:Main article: 1006: 1003: 970: 969: 960: 959: 958: 949: 948: 947: 946: 945: 903:tornado season 708: 707: 705: 704: 697: 690: 682: 679: 678: 665: 664: 661: 660: 655: 650: 648:Climate change 645: 639: 636: 635: 632: 631: 628: 627: 622: 617: 616: 615: 614: 613: 608: 603: 595: 590: 583:Severe weather 580: 575: 570: 565: 560: 559: 558: 553: 543: 542: 541: 531: 526: 525: 524: 519: 514: 509: 501: 500: 495: 489: 484: 483: 480: 479: 476: 475: 474: 473: 468: 463: 458: 448: 443: 442: 441: 431: 426: 421: 420: 419: 417:Megacryometeor 409: 404: 403: 402: 391: 386: 385: 382: 381: 378: 377: 376: 375: 370: 365: 360: 350: 345: 340: 335: 334: 333: 323: 322: 321: 316: 306: 301: 300: 299: 294: 284: 279: 278: 277: 272: 262: 257: 252: 247: 242: 237: 236: 235: 230: 225: 215: 214: 213: 203: 202: 201: 196: 191: 181: 180: 179: 169: 168: 167: 162: 157: 147: 146: 145: 140: 129: 124: 123: 120: 119: 116: 115: 110: 109: 108: 97: 92: 91: 88: 87: 84: 83: 78: 73: 68: 62: 57: 56: 53: 52: 46: 45: 26: 9: 6: 4: 3: 2: 6967: 6956: 6955:Units of time 6953: 6951: 6948: 6946: 6943: 6941: 6938: 6937: 6935: 6920: 6917: 6915: 6912: 6910: 6907: 6905: 6902: 6900: 6897: 6895: 6892: 6890: 6887: 6885: 6882: 6880: 6877: 6875: 6872: 6870: 6867: 6865: 6862: 6860: 6857: 6855: 6852: 6850: 6847: 6845: 6842: 6840: 6837: 6835: 6832: 6830: 6827: 6825: 6824:Diurnal cycle 6822: 6820: 6817: 6815: 6812: 6810: 6807: 6805: 6802: 6800: 6797: 6795: 6792: 6790: 6787: 6785: 6782: 6780: 6777: 6775: 6772: 6771: 6769: 6763: 6759: 6752: 6747: 6745: 6740: 6738: 6733: 6732: 6729: 6717: 6716: 6711: 6709: 6708: 6703: 6701: 6700: 6695: 6694: 6692: 6690: 6686: 6680: 6679: 6674: 6672: 6671: 6666: 6665: 6663: 6661: 6657: 6651: 6650: 6645: 6643: 6642: 6637: 6635: 6634: 6629: 6628: 6626: 6624: 6620: 6614: 6613: 6608: 6606: 6605: 6600: 6599: 6597: 6593: 6587: 6586: 6581: 6579: 6578: 6573: 6571: 6570: 6565: 6564: 6562: 6560: 6556: 6552: 6548: 6541: 6536: 6534: 6529: 6527: 6522: 6521: 6518: 6506: 6498: 6496: 6488: 6487: 6484: 6478: 6475: 6473: 6470: 6468: 6465: 6463: 6462: 6458: 6456: 6453: 6451: 6448: 6446: 6443: 6441: 6438: 6436: 6433: 6432: 6430: 6426: 6416: 6413: 6411: 6408: 6406: 6403: 6399: 6396: 6395: 6394: 6393:Chronobiology 6391: 6389: 6386: 6385: 6383: 6379: 6373: 6370: 6368: 6365: 6363: 6360: 6358: 6355: 6353: 6350: 6348: 6345: 6343: 6340: 6338: 6335: 6333: 6330: 6328: 6327:Arrow of time 6325: 6323: 6320: 6319: 6317: 6315: 6311: 6305: 6302: 6300: 6299:Geochronology 6297: 6293: 6290: 6288: 6285: 6283: 6280: 6278: 6275: 6273: 6270: 6268: 6265: 6264: 6263: 6260: 6259: 6257: 6255: 6251: 6248: 6246: 6241: 6235: 6231: 6227: 6224: 6222: 6219: 6217: 6214: 6212: 6209: 6205: 6202: 6200: 6197: 6196: 6195: 6192: 6190: 6187: 6185: 6182: 6180: 6177: 6176: 6174: 6172: 6167: 6163: 6155: 6152: 6151: 6150: 6149:Wheel of time 6147: 6143: 6140: 6139: 6138: 6135: 6133: 6130: 6128: 6125: 6123: 6120: 6118: 6115: 6113: 6110: 6109: 6107: 6102: 6099: 6097: 6094: 6093: 6090: 6084: 6083: 6079: 6077: 6074: 6072: 6069: 6067: 6064: 6062: 6059: 6057: 6054: 6052: 6049: 6047: 6044: 6042: 6039: 6037: 6034: 6032: 6029: 6027: 6024: 6022: 6019: 6018: 6016: 6014: 6010: 6004: 6001: 5999: 5996: 5994: 5993:Periodization 5991: 5989: 5986: 5984: 5981: 5979: 5976: 5974: 5971: 5970: 5968: 5963: 5960: 5958: 5955: 5954: 5951: 5939: 5938: 5934: 5933: 5932: 5931: 5927: 5925: 5922: 5920: 5919:Digital clock 5917: 5915: 5912: 5908: 5905: 5901: 5898: 5896: 5893: 5892: 5891: 5888: 5886: 5883: 5881: 5878: 5876: 5873: 5869: 5866: 5865: 5864: 5861: 5857: 5854: 5853: 5852: 5849: 5848: 5847: 5844: 5843: 5841: 5839: 5835: 5829: 5828: 5824: 5822: 5819: 5817: 5814: 5812: 5809: 5807: 5804: 5802: 5799: 5797: 5794: 5792: 5789: 5787: 5784: 5780: 5777: 5775: 5772: 5770: 5767: 5766: 5765: 5762: 5761: 5759: 5757: 5753: 5747: 5744: 5742: 5739: 5737: 5734: 5732: 5729: 5727: 5724: 5722: 5719: 5717: 5714: 5712: 5709: 5707: 5704: 5702: 5699: 5697: 5696:Relative hour 5694: 5692: 5691:24-hour clock 5689: 5687: 5686:12-hour clock 5684: 5682: 5679: 5677: 5674: 5673: 5671: 5669: 5663: 5657: 5654: 5652: 5649: 5647: 5644: 5642: 5639: 5637: 5634: 5633: 5631: 5629: 5625: 5622: 5620: 5615: 5611: 5605: 5602: 5600: 5597: 5595: 5592: 5590: 5587: 5586: 5584: 5580: 5576: 5569: 5564: 5562: 5557: 5555: 5550: 5549: 5546: 5534: 5531: 5527: 5526: 5522: 5521: 5520: 5519: 5514: 5512: 5509: 5507:(West Africa) 5506: 5503: 5501: 5498: 5496: 5493: 5492: 5490: 5486: 5480: 5477: 5475: 5472: 5471: 5469: 5467: 5463: 5456: 5450: 5445: 5437: 5434: 5432: 5429: 5427: 5424: 5422: 5419: 5418: 5416: 5414: 5410: 5406: 5399: 5394: 5392: 5387: 5385: 5380: 5379: 5376: 5370: 5366: 5363: 5360: 5358: 5355: 5353: 5350: 5348: 5345: 5343: 5340: 5338: 5335: 5333: 5330: 5328: 5325: 5322: 5318: 5315: 5312: 5308: 5305: 5304: 5297: 5294: 5286: 5283:December 2015 5276: 5272: 5271:inappropriate 5268: 5264: 5258: 5256: 5249: 5240: 5239: 5228: 5224: 5223: 5216: 5204: 5202:9780851158709 5198: 5194: 5193: 5192:War and Games 5188: 5182: 5175: 5164: 5162:9780803978973 5158: 5154: 5153: 5148: 5144: 5143:Tunander, Ola 5137: 5121: 5117: 5111: 5096: 5092: 5086: 5072:on 2015-11-04 5071: 5067: 5061: 5047: 5043: 5037: 5022: 5016: 5001: 4995: 4981: 4974: 4966: 4959: 4951: 4944: 4936: 4929: 4921: 4914: 4912: 4895: 4891: 4887: 4881: 4866: 4862: 4855: 4846: 4842: 4838: 4834: 4830: 4825: 4821: 4818: 4811: 4804: 4800: 4797: 4793: 4789: 4786: 4781: 4775: 4770: 4764: 4759: 4753: 4748: 4742: 4737: 4721: 4717: 4711: 4697: 4693: 4686: 4670: 4664: 4653: 4649: 4642: 4636: 4630: 4626: 4623: 4617: 4615: 4607: 4602: 4587: 4583: 4577: 4563:on 2012-10-21 4562: 4558: 4552: 4550: 4536:on 2009-03-27 4532: 4528: 4527: 4520: 4512: 4508: 4502: 4487: 4481: 4467: 4463: 4456: 4449: 4445: 4442: 4438: 4434: 4431: 4430:De Re Rustica 4426: 4424: 4416: 4415:archive.today 4412: 4409: 4403: 4387: 4383: 4376: 4361: 4360: 4355: 4348: 4346: 4339: 4335: 4332: 4329: 4323: 4308: 4301: 4287: 4281: 4277: 4276: 4268: 4254: 4248: 4244: 4243: 4235: 4220: 4219: 4212: 4198: 4192: 4188: 4187: 4179: 4172: 4167: 4163: 4159: 4157:0-7876-9332-4 4153: 4149: 4142: 4140: 4131: 4127: 4123: 4119: 4115: 4111: 4107: 4100: 4086:on 2016-09-16 4085: 4081: 4077: 4073: 4069: 4065: 4061: 4057: 4053: 4049: 4042: 4027: 4023: 4017: 4013: 4002: 3999: 3997: 3994: 3991: 3988: 3986: 3985:Indian summer 3983: 3980: 3977: 3976: 3970: 3968: 3964: 3960: 3956: 3952: 3948: 3943: 3941: 3937: 3933: 3929: 3925: 3921: 3917: 3913: 3908: 3899: 3895: 3893: 3888: 3885: 3880: 3876: 3872: 3868: 3863: 3861: 3857: 3852: 3848: 3847:Arctic Circle 3833: 3830: 3829: 3825: 3822: 3821: 3817: 3814: 3813: 3809: 3806: 3805: 3802: 3800: 3796: 3792: 3788: 3787: 3782: 3781: 3776: 3775: 3767:Three seasons 3759: 3756: 3754: 3751: 3749: 3746: 3745: 3741: 3738: 3736: 3733: 3731: 3728: 3727: 3723: 3720: 3717: 3714: 3713: 3707: 3705: 3701: 3697: 3692: 3688: 3686: 3683: 3679: 3674: 3670: 3666: 3662: 3648: 3634: 3631: 3628: 3627: 3623: 3620: 3617: 3616: 3612: 3610:June to July 3609: 3606: 3605: 3601: 3599:April to May 3598: 3595: 3594: 3590: 3587: 3584: 3583: 3579: 3576: 3573: 3572: 3568: 3565: 3562: 3561: 3558: 3555: 3545: 3542: 3539: 3538: 3534: 3531: 3528: 3527: 3523: 3520: 3517: 3516: 3512: 3509: 3506: 3505: 3501: 3498: 3495: 3494: 3490: 3487: 3484: 3483: 3479: 3476: 3473: 3472: 3469: 3467: 3463: 3458: 3455: 3448: 3435: 3432: 3429: 3426: 3423: 3420: 3417: 3414: 3411: 3408: 3405: 3402: 3401: 3400: 3398: 3394: 3390: 3389:British Isles 3386: 3382: 3378: 3374: 3364: 3361: 3335: 3321: 3318: 3315: 3314: 3310: 3307: 3304: 3303: 3299: 3296: 3293: 3292: 3288: 3285: 3282: 3281: 3277: 3274: 3271: 3270: 3266: 3263: 3260: 3259: 3256:Tamil months 3255: 3252: 3250:Tamil season 3249: 3248: 3245: 3243: 3233: 3230: 3228: 3225: 3220: 3219: 3215: 3212: 3210: 3207: 3202: 3201: 3197: 3194: 3192: 3188: 3183: 3182: 3178: 3176:Bhādråb–Āświn 3175: 3173: 3170: 3165: 3164: 3160: 3158:Āṣāṛhå–Śrābåṇ 3157: 3155: 3152: 3147: 3146: 3142: 3139: 3137: 3134: 3129: 3128: 3124: 3121: 3118: 3113: 3112: 3109: 3107: 3106:Odia Calendar 3098: 3095: 3093: 3089: 3086: 3083: 3081:Mid-February 3080: 3077: 3076: 3073: 3070: 3068: 3064: 3061: 3059:Mid-February 3058: 3056:Mid-December 3055: 3052: 3051: 3048: 3045: 3043: 3039: 3036: 3034:Mid-December 3033: 3030: 3027: 3026: 3023: 3020: 3018: 3014: 3011: 3008: 3005: 3002: 3001: 2998: 2995: 2993: 2989: 2986: 2983: 2980: 2977: 2976: 2973: 2970: 2968: 2964: 2961: 2958: 2955: 2952: 2951: 2947: 2944: 2941: 2938: 2935: 2934: 2931: 2929: 2919: 2917: 2913: 2910: 2907: 2904: 2902: 2899: 2898: 2894: 2892: 2888: 2885: 2882: 2880:Mid-November 2879: 2877: 2874: 2873: 2869: 2867: 2863: 2860: 2858:Mid-November 2857: 2854: 2852: 2849: 2848: 2844: 2842: 2838: 2835: 2832: 2829: 2827: 2824: 2823: 2819: 2817: 2813: 2810: 2807: 2804: 2802: 2799: 2798: 2794: 2792: 2788: 2785: 2782: 2779: 2777: 2774: 2773: 2769: 2767:Hindu months 2766: 2763: 2760: 2758:Hindu season 2757: 2756: 2753: 2751: 2747: 2743: 2739: 2735: 2731: 2727: 2723: 2719: 2714: 2706: 2702: 2696: 2690: 2684: 2678: 2672: 2666: 2660: 2654: 2648: 2642: 2636: 2630: 2624: 2618: 2612: 2608: 2604: 2599: 2587: 2583: 2580: 2576: 2574: 2571: 2570: 2566: 2563: 2559: 2557: 2554: 2553: 2549: 2546: 2542: 2540: 2537: 2536: 2532: 2529: 2525: 2523: 2520: 2519: 2515: 2512: 2509: 2508: 2502: 2500: 2496: 2492: 2488: 2484: 2480: 2476: 2472: 2468: 2467: 2462: 2456: 2454: 2450: 2446: 2438: 2434: 2430: 2425: 2416: 2413: 2411: 2407: 2397: 2395: 2391: 2387: 2383: 2378: 2374: 2372: 2371:Christian era 2368: 2367:third century 2364: 2358: 2353: 2343: 2341: 2337: 2329: 2325: 2321: 2317: 2312: 2308: 2306: 2302: 2298: 2293: 2291: 2287: 2281: 2278: 2274: 2273: 2268: 2264: 2261: 2257: 2247: 2244: 2241: 2238: 2235: 2232: 2229: 2226: 2222: 2218: 2215: 2212: 2209: 2206: 2203: 2200: 2197: 2193: 2189: 2186: 2183: 2180: 2177: 2174: 2171: 2168: 2164: 2160: 2157: 2154: 2151: 2148: 2145: 2142: 2139: 2135: 2131: 2128: 2125: 2122: 2119: 2116: 2113: 2110: 2106: 2102: 2099: 2096: 2093: 2090: 2087: 2084: 2081: 2077: 2073: 2070: 2067: 2064: 2061: 2058: 2055: 2052: 2048: 2044: 2041: 2038: 2035: 2032: 2029: 2026: 2023: 2019: 2015: 2012: 2009: 2006: 2003: 2000: 1997: 1994: 1990: 1986: 1983: 1980: 1977: 1974: 1971: 1968: 1965: 1961: 1957: 1954: 1951: 1948: 1945: 1942: 1939: 1936: 1932: 1903: 1886: 1883: 1878: 1873: 1868: 1861: 1856: 1852: 1847: 1836: 1834: 1830: 1821: 1817: 1814: 1810: 1806: 1803: 1799: 1795: 1792: 1789: 1786: 1785: 1784: 1782: 1772: 1768: 1765: 1759: 1755: 1752: 1751: 1745: 1741: 1736: 1732: 1731: 1728: 1724: 1718: 1715: 1714: 1713: 1704: 1701: 1699: 1696: 1694: 1691: 1690: 1686: 1683: 1681: 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1039: 1035: 1031: 1022: 1012: 1002: 1000: 996: 992: 988: 978: 974: 964: 953: 944: 942: 938: 934: 930: 929: 924: 923: 918: 917: 912: 910: 905: 904: 899: 898: 893: 891: 886: 882: 878: 877: 872: 870: 865: 864: 859: 858: 853: 849: 845: 841: 837: 833: 829: 825: 824: 819: 815: 814: 809: 808: 803: 802: 797: 793: 789: 784: 782: 778: 774: 770: 766: 762: 757: 755: 751: 747: 743: 739: 735: 731: 727: 723: 719: 715: 703: 698: 696: 691: 689: 684: 683: 681: 680: 677: 672: 667: 666: 659: 656: 654: 653:Tornado terms 651: 649: 646: 644: 641: 640: 634: 633: 626: 623: 621: 618: 612: 611:United States 609: 607: 604: 602: 599: 598: 596: 594: 591: 589: 586: 585: 584: 581: 579: 576: 574: 571: 569: 566: 564: 561: 557: 554: 552: 549: 548: 547: 544: 540: 537: 536: 535: 532: 530: 527: 523: 520: 518: 515: 513: 510: 508: 505: 504: 503: 502: 499: 496: 494: 493:Air pollution 491: 490: 487: 482: 481: 472: 469: 467: 464: 462: 459: 457: 454: 453: 452: 449: 447: 444: 440: 437: 436: 435: 432: 430: 427: 425: 422: 418: 415: 414: 413: 410: 408: 405: 401: 398: 397: 396: 393: 392: 389: 388:Precipitation 384: 383: 374: 371: 369: 366: 364: 361: 359: 356: 355: 354: 351: 349: 346: 344: 341: 339: 336: 332: 329: 328: 327: 324: 320: 317: 315: 312: 311: 310: 307: 305: 302: 298: 295: 293: 290: 289: 288: 285: 283: 280: 276: 273: 271: 268: 267: 266: 263: 261: 258: 256: 253: 251: 248: 246: 243: 241: 238: 234: 231: 229: 226: 224: 221: 220: 219: 216: 212: 209: 208: 207: 204: 200: 197: 195: 192: 190: 187: 186: 185: 182: 178: 175: 174: 173: 170: 166: 163: 161: 158: 156: 153: 152: 151: 148: 144: 141: 139: 136: 135: 134: 131: 130: 127: 122: 121: 114: 111: 107: 104: 103: 102: 99: 98: 95: 90: 89: 82: 79: 77: 74: 72: 69: 67: 64: 63: 60: 55: 54: 51: 48: 47: 43: 39: 38: 33: 19: 6908: 6904:Seasonal lag 6767:oscillations 6714: 6706: 6698: 6677: 6669: 6648: 6640: 6632: 6611: 6603: 6584: 6576: 6568: 6467:Time capsule 6461:Tempus fugit 6459: 6381:Other fields 6080: 6061:Perdurantism 5983:Calendar era 5935: 5928: 5914:Cuckoo clock 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Retrieved 4025: 4016: 3951:harvest time 3944: 3909: 3905: 3896: 3889: 3864: 3856:midnight sun 3844: 3807:Thai season 3784: 3778: 3772: 3770: 3693: 3689: 3678:Indian Ocean 3663:(or wet, or 3658: 3551: 3507:Mithoskumin 3474:Cree season 3459: 3450: 3433: 3427: 3421: 3415: 3409: 3403: 3370: 3357: 3239: 3161:June–August 3103: 3031:Mid-October 3009:Mid-October 2925: 2905:Mid-January 2883:Mid-January 2715: 2712: 2646: 2634: 2622: 2610: 2606: 2602: 2600: 2598: 2584:31 October ( 2543:1 February ( 2526:1 November ( 2464: 2457: 2442: 2437:seasonal lag 2429:quarter days 2414: 2403: 2379: 2375: 2359: 2355: 2333: 2294: 2282: 2270: 2265: 2253: 1839:Astronomical 1825: 1819: 1816:Post-monsoon 1815: 1808: 1804: 1797: 1793: 1787: 1778: 1770: 1710: 1705:30 November 1579: 1578: 1543: 1523: 1519: 1485: 1473: 1462:astronomical 1459: 1455:seasonal lag 1444: 1418: 1398: 1394:Arctic Ocean 1355: 1336: 1325: 1322: 1302: 1196: 1141: 1122: 1099: 1054:Earth's axis 1027: 984: 926: 920: 914: 907: 901: 895: 888: 884: 880: 874: 867: 861: 855: 851: 847: 843: 839: 835: 831: 821: 817: 811: 805: 799: 785: 781:seasonal lag 758: 738:tilted orbit 713: 711: 429:Diamond dust 353:Winter storm 184:Thunderstorm 58: 6477:Time travel 6455:System time 6362:Time domain 6347:Proper time 6171:use of time 6142:Father Time 6122:Immortality 6112:Ages of Man 6041:Endurantism 5998:Regnal year 5978:Big History 5907:water-based 5806:Solar Hijri 5716:Hexadecimal 5666:Measurement 5628:Chronometry 5614:Measurement 5319:article on 4726:21 December 4275:Climatology 3936:Vladivostok 3924:Arkhangelsk 3877:(about 450 3860:polar night 3760:31 October 3655:Two seasons 3213:Pouṣå–Māghå 3143:April–June 3122:Odia months 3114:Odia Season 3047:Late Autumn 3006:Mid-August 2984:Mid-August 2595:Solar terms 2533:31 January 2388:, ignoring 1798:pre-monsoon 1702:1 September 1589:New Zealand 1585:Australasia 1472:are in the 1425:subtropical 1374:hibernation 1211:culmination 1209:(the Sun's 1090:dissipation 1088:light, the 1060:around the 977:Maharashtra 750:hibernation 740:around the 736:of Earth's 643:Meteorology 578:Meteorology 466:Snow roller 461:Snow grains 424:Ice pellets 373:Snow squall 304:Storm surge 250:Anticyclone 206:Mesocyclone 194:Thundersnow 143:Arcus cloud 6934:Categories 6809:Bond event 6676:Subarctic 6633:(Cfa, Cwa) 6612:(BSh, BSk) 6610:Semi-arid 6604:(BWh, BWk) 6179:Chronemics 6154:Kalachakra 6066:Presentism 6051:Eternalism 5957:Chronology 5895:mechanical 5846:Main types 5764:Main types 5518:minoskamin 5500:Fog season 5479:Dry season 5474:Wet season 5309:(from the 5101:2019-11-05 5076:2016-02-26 5051:2019-03-21 5027:2019-03-21 5006:2019-03-21 4985:2012-05-30 4701:2022-08-01 4669:"中国的气温和四季" 4567:2012-10-22 4540:2009-03-20 4492:2014-10-01 4471:2014-10-01 4291:2022-12-02 4258:2022-12-02 4225:2022-12-02 4202:2022-12-02 4090:2011-05-13 4008:References 3990:Persephone 3947:conscripts 3940:Sevastopol 3753:Dry season 3748:Wet season 3739:1 November 3735:Wet season 3730:Dry season 3721:Start date 3702:, and the 3696:Queensland 3669:dry season 3546:Freeze-up 3466:Algonquian 3445:See also: 3125:Gregorian 3084:Mid-April 2956:Mid-April 2908:Mid-March 2887:Agrahayana 2841:Bhadrapada 2780:Mid-March 2744:(autumn), 2732:(summer), 2728:(spring), 2586:Hallowe'en 2579:Lughnasadh 2577:1 August ( 2513:Start date 2499:Lughnasadh 2431:(top) and 2406:axial tilt 2350:See also: 2301:perihelion 2277:perihelion 1897:September 1687:31 August 1648:1 December 1630:Start date 1609:Queensland 1451:insolation 1392:is in the 1390:North Pole 1386:Antarctica 1382:South Pole 1310:perihelion 1199:day length 1176:terminator 1172:South Pole 1168:North Pole 1094:atmosphere 1078:South Pole 1074:North Pole 1044:Axial tilt 876:dry season 777:solar flux 637:Glossaries 573:Jet stream 512:Convection 498:Atmosphere 446:Cloudburst 309:Dust storm 275:Nor'easter 245:Fire whirl 240:Dust devil 233:Waterspout 160:Heat burst 155:Microburst 113:Wet season 101:Dry season 6940:Calendars 6435:Leap year 6352:Spacetime 6226:Yesterday 6127:Dreamtime 6101:Mythology 5988:Deep time 5900:stopwatch 5875:hourglass 5856:astrarium 5786:Gregorian 5779:Lunisolar 5756:Calendars 5746:Time zone 5619:standards 5505:Harmattan 5267:excessive 5208:21 August 5168:21 August 4870:4 October 4829:Meeus, J. 4365:April 21, 4130:121230141 4080:120966256 4001:Vertumnus 3928:Kronstadt 3786:low water 3742:30 April 3724:End date 3673:Nicaragua 3540:Mikiskaw 3529:Tukwakin 3502:Break-up 3422:Serotinal 3404:Prevernal 3360:hedgehogs 3042:Ogrohayon 2981:Mid-June 2959:Mid-June 2830:Mid-July 2808:Mid-July 2791:Vaishakha 2550:30 April 2516:End date 2483:Halloween 2386:Greenwich 2363:proleptic 2320:periapsis 2290:equinoxes 2286:solstices 2269:, in his 1900:December 1855:solstices 1851:equinoxes 1812:rainfall. 1801:interior. 1633:End date 1470:equinoxes 1447:solstices 1358:temperate 1279:UTC+02:00 1164:equinoxes 928:low water 890:harmattan 844:serotinal 832:prevernal 792:sub-polar 788:temperate 779:. Due to 765:Midsummer 568:Heat wave 563:Cold wave 507:Chemistry 358:Ice storm 348:Firestorm 260:Polar low 228:Landspout 211:Supercell 172:Lightning 150:Downburst 106:Harmattan 40:Part of 6715:(ET, EF) 6705:Ice cap 6639:Oceanic 6585:(Aw, As) 6495:Category 6243:Time in 6234:Tomorrow 6096:Religion 6036:Duration 6003:Timeline 5937:Timeline 5736:Sidereal 5604:Eternity 5488:Specific 5365:Archived 5126:27 April 5095:Archived 4900:June 23, 4820:Archived 4799:Archived 4788:Archived 4675:17 April 4625:Archived 4591:27 April 4466:CBC News 4444:Archived 4433:Archived 4411:Archived 4334:Archived 4166:60695883 4031:27 April 3996:Sun path 3973:See also 3932:Baltiysk 3912:ice-free 3892:twilight 3642:Tropical 3543:Nov/Dec 3532:Sep/Oct 3521:Jul/Aug 3510:May/Jun 3499:Mar/Apr 3488:Jan/Feb 3434:Hibernal 3428:Autumnal 2967:Joishtho 2963:Boishakh 2916:Phalguna 2901:Shishira 2845:monsoon 2837:Shravana 2812:Jyeshtha 2805:Mid-May 2783:Mid-May 2750:Shishira 2567:31 July 2463:'s play 2328:solstice 2316:apoapsis 2305:aphelion 1882:solstice 1872:solstice 1857:on Earth 1771:Figure 7 1758:abscisse 1613:Brisbane 1601:Tasmania 1597:Victoria 1540:Official 1496:and its 1466:daylight 1421:tropical 1378:latitude 1366:sunlight 1343:currents 1314:aphelion 1203:altitude 1201:and the 1188:daylight 1170:and the 1162:are the 1125:northern 1118:ecliptic 1086:incident 1058:sunlight 987:planting 909:wildfire 873:and the 852:hibernal 848:autumnal 746:sunlight 726:daylight 439:Freezing 400:Freezing 363:Blizzard 42:a series 6950:Seasons 6909:Seasons 6864:Monsoon 6765:Climate 6713:Alpine 6697:Tundra 6689:Class E 6660:Class D 6623:Class C 6595:Class B 6559:Class A 6547:Climate 6505:Commons 6428:Related 6342:Instant 6332:Chronon 6314:Physics 6254:Geology 6245:science 6117:Destiny 5962:History 5930:History 5885:sundial 5868:quantum 5811:Chinese 5801:Islamic 5711:Decimal 5706:Chinese 5668:systems 5594:Present 5405:Seasons 5261:Please 5253:use of 4841:Bibcode 4671:. 中国气象局 4534:(Dutch) 4060:Bibcode 3858:" and " 3810:Months 3793:of the 3682:monsoon 3665:monsoon 3554:Noongar 3535:Autumn 3524:Summer 3513:Spring 3496:Sekwun 3491:Winter 3416:Estival 3373:Oceanic 3223:Båsåntå 3186:Hemåntå 3154:Monsoon 3130:ଗ୍ରୀଷ୍ମ 3092:Choitro 2997:Monsoon 2876:Hemanta 2870:autumn 2866:Kartika 2851:Sharada 2820:summer 2816:Ashadha 2801:Grishma 2795:spring 2787:Chaitra 2776:Vasanta 2746:Hemanta 2742:Sharada 2738:monsoon 2730:Grishma 2726:Vasanta 2716:In the 2645:), and 2603:zhōngqi 2562:May Day 2560:1 May ( 2495:May Day 2491:Beltane 2479:Samhain 2453:Ireland 2369:of the 2324:equinox 2297:apsides 1877:equinox 1867:equinox 1805:Monsoon 1754:Diagram 1669:31 May 1666:1 March 1403:Tropics 1356:In the 1347:El Niño 1326:farther 1160:Equator 1114:degrees 1064:of the 1034:Polaris 991:harvest 979:, India 973:monsoon 935:of the 869:monsoon 840:estival 828:climate 820:), and 754:migrate 722:ecology 718:weather 593:Extreme 539:Physics 529:Climate 517:Physics 407:Graupel 395:Drizzle 343:Sirocco 326:Monsoon 297:Typhoon 255:Cyclone 218:Tornado 165:Derecho 50:Weather 6602:Desert 6445:Moment 6440:Memory 6292:period 5880:marine 5863:atomic 5838:Clocks 5796:Hebrew 5791:Julian 5726:Metric 5599:Future 5436:Winter 5431:Autumn 5426:Summer 5421:Spring 5199: 5159: 4392:14 May 4388:. 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